oracle

package

v1.0.1 Latest Latest Go to latest Published: Oct 31, 2017 License: Apache-2.0 Imports: 2 Imported by: 0

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github.com/Pingcap/TiDB

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Documentation ¶

Index ¶

func ComposeTS(physical, logical int64) uint64
func ExtractPhysical(ts uint64) int64
func GetPhysical(t time.Time) int64
type Future
type Oracle

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func ComposeTS ¶

func ComposeTS(physical, logical int64) uint64

ComposeTS creates a ts from physical and logical parts.

func ExtractPhysical ¶

func ExtractPhysical(ts uint64) int64

ExtractPhysical returns a ts's physical part.

func GetPhysical ¶

func GetPhysical(t time.Time) int64

GetPhysical returns physical from an instant time with millisecond precision.

Types ¶

type Future ¶

type Future interface {
	Wait() (uint64, error)
}

Future is a future which promises to return a timestamp.

type Oracle ¶

type Oracle interface {
	GetTimestamp(ctx goctx.Context) (uint64, error)
	GetTimestampAsync(ctx goctx.Context) Future
	IsExpired(lockTimestamp uint64, TTL uint64) bool
	Close()
}

Oracle is the interface that provides strictly ascending timestamps.

Source Files ¶

View all Source files

oracle.go

Directories ¶

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